which compound is produced during carbon fixation?\npga\ng3p\nrubp\nc₆h₁₂o₆

Brief Explanations:

In the Calvin - cycle (carbon fixation process in photosynthesis), carbon dioxide combines with ribulose - 1,5 - bisphosphate (RuBP) to form 3 - phosphoglycerate (PGA). PGA is the first stable product of carbon fixation. G3P is produced later in the cycle from PGA. RuBP is the starting molecule for carbon fixation, not a product. Glucose ($C_{6}H_{12}O_{6}$) is the end - product of the Calvin cycle after multiple steps and not directly produced during the initial carbon fixation step.

Answer:

PGA